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Q.

Assertion : The elastic spring force arises due to the net attraction or repulsion between the neighbouring atoms of the spring when it is elongated or compressed.
Reason : The laws of derived forces such as spring force, friction force are independent of the laws of fundamental forces in nature.

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a

lf both assertion and reason are true and reason is the correct explanation of assertion.

b

lf both assertion and reason are true but reason is not the correct explanation of assertion.

c

lf assertion is true but reason is false.

d

lf both assertion and reason are false.

answer is C.

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Detailed Solution

The laws of derived forces such as spring force, friction are not independent of the laws of fundamental forces in nature. So the reason is false.

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